How Long Will the Bluetti PS72 Power Your CPAP Machine?

For those who rely on a CPAP machine, ensuring an uninterrupted night of sleep is non-negotiable, especially when you're away from a reliable wall outlet. Whether you're camping, overlanding, or simply preparing for a power outage, a portable power station is essential. The Bluetti PS72 is a popular compact option, but the critical question remains: is it powerful enough to get you through the night? This guide from Consumer's Best will break down the exact bluetti-ps72-cpap-runtime so you can make an informed decision.

Understanding the Key Numbers

To calculate runtime, we first need to understand two things: the power station's capacity and the CPAP machine's consumption. The Bluetti PS72 features a 716 Watt-hour (Wh) battery. Think of this as the size of its 'gas tank.' A standard CPAP machine's power draw can vary significantly, typically ranging from 30 to 60 watts (W) per hour. However, this number can climb much higher if you use features like a heated humidifier or a heated tube.

Calculating the Bluetti PS72 CPAP Runtime

The basic formula is straightforward: Battery Capacity (Wh) / Device Wattage (W) = Runtime (Hours). Let's apply this to the Bluetti PS72's 716Wh capacity. For a CPAP machine running at a conservative 40W without a humidifier, the calculation is 716Wh / 40W = 17.9 hours. This provides enough power for two full 8-hour nights of sleep with some charge to spare. Now, let's factor in a heated humidifier, which can increase the draw to an average of 75W. The calculation becomes 716Wh / 75W = 9.5 hours. This is enough for one full night, with a small buffer.

Key Factors That Impact Runtime

Your personal bluetti-ps72-cpap-runtime can vary based on several factors. Using a heated humidifier is the single largest drain on battery life. Similarly, a heated tube will also increase power consumption. Your prescribed pressure setting also plays a role; higher pressure requires the machine to work harder, drawing more watts. Finally, remember that it's best practice to power your CPAP using the power station's DC output, as this is more efficient and avoids the small power loss that occurs when converting to AC.

Is the Bluetti PS72 Your Best Choice?

The Bluetti PS72 offers a fantastic balance of portability and power. For most CPAP users, especially those who can forgo the humidifier, it provides reliable power for a weekend trip. Its LiFePO4 battery chemistry ensures a long lifespan with thousands of charge cycles. However, if you are a critical user who absolutely requires a heated humidifier for more than one night without recharging, you may need to consider a larger model. To see how the PS72 compares in charging speed, output port selection, and overall value against other leading models, explore the comprehensive Consumer's Best product review guide.